Gennaio 13, 2020

Come si cambia $\frac{9}{12}$ $9/12$ nella forma più semplice?

Risposta:

$\frac{3}{4}$ $3/4$

Spiegazione:

To express a fraction in $simplest form$ $color(blue)"simplest form"$ we need to find a number, the largest is preferable, that divides into both 9 and 12.
In this case the largest number that divides into both is 3.

Now we divide 9 and 12 by 3

$\Rightarrow \frac{9}{12} = \frac{9 \div 3}{12 \div 3} = \frac{3}{4} in simplest form$ $rArr9/12=(9÷3)/(12÷3)=3/4" in simplest form"$

Usually, the task of dividing both numbers by 3 is performed mentally, stroking out the number and replacing it by the value remaining after division.This is called $cancelling$ $color(red)"cancelling"$

$rArr(cancel(9)^3)/(cancel(12)^4)=3/4$

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